Study traces how an El Niño changed the pollution map | India News
That atmospheric conditions regulate pollution levels was always known. (File photo) The winter of 2022-23 was remarkably clean in north India with PM2.5 levels down by up to 30% from the average of the previous three years, while peninsular India was considerably dirtier, with average PM2.5 levels in Mumbai spiking by 45%. The next winter…